Machine for forming shanks on buttons.



M. & S. STOGKOV.

MACHINE FOR FORMING SHANKS 0N BUTTONS.

APPLICATION FILED OUT. 11, 1913.

1,105,71 1. Patented Aug. 4, 1914.

3 SHEETS-:SHEET 1.

THE NORRIS PET ERS CO., PHO'I'OJJ'IHOu WASHINGTON. D C

M4 6.5 $613M 6mm 2 2 g f M. & s. STOOKOV.

MACHINE FOR FORMING SHANKS 0N BUTTONS.

APPLICATION FILED our. 11, 1913.

' THE )VORRIS PETERS CO" FHOTO-LITHO, WASHINGTON, D. C

M. & S. STOOKOV. MACHINE FOR FORMING SHANKS 0N BUTTONS.

APPLICATION FILED 0UT.11, 1918.

Patented Aug. 4, 1914.

s SHEETS-SHIEET 3.

N WNHNWQM. RN. ll I AN Q m Q W W 1 WWQ Sw H\L\\\ Wm MN H 1 k m 4k Q Q H a l mum hi H N M 5 ww imw a I m NW. N l hm. MN QM. w RM. 0 .nN 1 m, .fiw N \Q RN NM mm Ww 3 ms WQ m H Q W NM. MM. 2 W. hm m mw OQN wm m m mWwww @w w UNITE STATES PATENT OFFICE.

MAX STOCKOV AND SOLOMON strooKov, OF NEW YORK, n. Y.

MACHINE FOR FORMING SHANKS ON BUTTONS.

Specification of Letters Patent.

Patented A11 4, 1914.

Application filed October 11 1913. Serial No. 794,564.

To all whom, it may concern:

Be it known that we, MAX STocKov, a subject of the Czar of Russia, and SOLOMON Sroonov, a citizen of the United States, both residing in theborough and county of Bronx, in the city and State of New ork, have invented new and useful Improvements in Machines for Forming Shanks on Buttons, of which the following is a specification.

This invention relates to. machines for providing a button blank with a shank or eyelet. In this type of button the button blank is provided with an opening-for the insertion of a pin which is bent to form an eyelet or loop to serve as the securing means, and it is the object of the invention to pro vide a machine of this character which is cheap, compact and simple in construction 1 and efiicient in operation. In making buttons of this character the pins are originally of uniform length. However, as the button blanks vary in thickness such pins will not suflice. Vhile certain of the blanks will be of the right thickness with the portion of the pin projecting therethrough of a length to properlv form the shank or eyelet, other blanks will be thinner thus leaving a greater portion of the pin to be formed'into the eyelet with the result that the button blank will be loose onthe shank, while in other in stances the blank will be thicker with the result that the projecting pin portion will not be of sufiicient length and aS the eyelet is being formed the strain on the pin will break the button blank.

It is therefore, important that the length of pin beneath the button blank is of the same length in all instances, and it is a further object of the invention to provide mechanism to sever the pin at a predetermined point and thereby permit the forming of the eyelets of uniform size irrespective of the original length of the pin.

Further objects of the invention relate to improved die mechanism to form the eyelet or loop,.to mechanism to support the button blank and in during the operation of forming the eye ct, and to mechanism to eject the finished button.

Further objects and advantages will hereinaftcr appear.

in the drawings accompanying and forming a part of this specification, Figure 1 is a plan view of a button shanking machine illustrating an embodiment of our inventhe end of Fig. 1. Fig. 3 is a perspective view looking at the face'of a button blank. Fig. 4 is a perspective view of a pin from which the button shank is formed. Fig. 5

6 is a longitudinal sectional view taken substantially midway through Fig. 1. Fig. 7 is a side elevation, partly in section, looking at the right of Fig. 1 illustrating the button ejecting mechanism in normal position. Fig. 8 is a fragmentary side elevation illustrating the manner of actuating the button ejecting mechanism. Fig. 9 is a sectional end elevation to illustrate the operation of the button ejector. Fig. 10 is a fragmentary sectional side elevation to illustrate the manner of supporting the button and the cutter mechanism to sever the button pin at a predetermined point, the latter mechanism being in normal position. Fig. 11 is a view similar to Fig. 10 but showing the cutter mechanism as having been actuated and the pin severed. Fig. 12 is a view looking at the bottom of the cutter showing the relation of the button pin thereto before the pin is severed. Fig. 13 is a bottom view of the die mechanism with a button blank pin in "position just previous to forming the pin into an eyelet. Fig. 14: is a view similar to Fig. 13 but showing themanner of forming the eyelet. Fig. 15 is a sectional side elevation illustrating the button supporting lmeans in released position and the position it assumes when the die mechanism is returned to initial position; and Fig. 16 is an end elevation, partly in section, to illustrate the die mechanism.

Similar characters of reference designate like parts throughout the different views of the drawings.

The embodiment of the invention illustrated in the drawings consists of a cast "metal supporting base or frame B having lateral projecting lugs with openings for the insertion of screws to fasten it to a table or bench, shown in a general way by T, so that a portion will project beyond the edge of the table as shown in Fig. 1.

The die mechanism to form a headed pin 17 inserted in an opening in a button blank 18 (Figs. 3' and 4) into a shank or eyelet as shown in Fig. 5, consists of a block 19 fixed in a recess extending longitudinally of the base, said block having a longitudinal rectangular recess 20 with the side walls tapertion. Fig. 2 is an end elevation looking at 1 1 is a side elevation of a finished button. Fig. 1

ing or curved inwardly at the outer end, as clearly shown in Fig. 1. A complemental die member 21 having a portion to engage in the recess 20 of the fixed die member is mounted to have sliding reciprocatory movement in the base recess, the end ofthe por-' tion of said slidable member engaging in the recess of the fixed die, member having a concave or circular recess as shown in Figs. 13

and 14 for a purpose to be hereinafter described. This die member 21 is maintained inposition in the base recess by a plate 22 releasably secured to .thetop of the base.

Movement is lmparted to. the slidable die member by a hand lever 23 pivotally supported, as at 24c, to move between the plate 22 and a bar 25 spaced therefrom. The; die

1 member 21 is operativelyconnected to said lever by a stud 27 fixed in and projecting up from said die member through aslot 26 in the plate 22 and engaging in an opening 28 in the lever. (Figs. 1, (Sand 11.) It will be obvious that by moving thelever to and fro sliding reciprocatory movement will be imparted to the die member 21. The fixed die member'19 also serves as asupport for the button blank with an inserted pin, (Figs.

10 to 1 1,) the pin passing between the curved or tapered side walls of the die recess and the button blank abutting against the end of the die block and plate 22. The, button blank and pin is clamped in this position by a head 29, preferably having a recessed portion to fit the head of the pin, carried by a an eccentric roller 33, a pair of curved fingers 34: fixed to the plate'engaging over and in recesses at each end of said rollers. Motion is-imparted to the eccentric bya hand lever 35 fixed in the eccentric. By rotating 'the eccentric in one direction the engagement thereof with the plate fingers 341 will draw the plate and head 29 away from the die mechanism, while a reverse rotation will cause the eccentric to engage with the plate and force it toward the die mechanism, as will be clearly obvious.

To assure the forming or bending of the button pin 17 into an eyelet or loop there is provided a pin 36 located just forwardof the curved recess portion of the slidable die member 21, which pin is herein termed a forming pin said pin being fixed in a carrier 37 and slidably engaging in an aperture in the die member 21, the carrier having a pair of oppositely extending fingers to embrace the outside of the plate 22. (Fig. 1.) This carrier is mounted upon the slidable die member 21 to have movement therewith and have movement transversely there of for a purpose to'be hereinafter described. To connect the carrier 37 to the'die member 21there is fixed a second pin 33 in the car-V .rier slidably engaging in an aperture in the die member 21, thereby preventing lateral or distorting movement of the carrier relative to said die member. The pin 36 and its carrier is normally maintained in operative relation to the die mechanism by aspring 39 fixed to the die member21. As the die member 21 is moved forward by the lever 23 the curved recess in the end will cause the end of the button pin 17 to follow this curved or concave recess and coil the pin 17 about the forming pin 36, as .clearly shownin It will be noted that after the butto-n shanlror eyelet is formed that the forming in.36 en a es in said evelet and to throw p t) b .1 7

said pin 36 out of the eyelet and permit the return of the die member 21 to initial position, movement transverse to the movement of the die member 21 is imparted tothe forming 'pin 36 through its carrier 37. For this purpose there are a pair of pins i0 slidably mounted in the base B in the path of the lateral arms of the forming pin carrier 37 and normallymaintained flush with or 1 below the surface of the plate 22 by springs 41. After the button shank has been formed the clamping plate 30'is released, and" as it is moved away from the button a pair of rods 42 fixed to the plate and slidably engaging in openings &3 (Fig. 15) move with the plate, the lower ends of the pins-4E0v during such movement riding along cams or in clined beveled portions 44 of the rods 4-2 forcing said pins upward against the lateral arms of theforming pin carrier 37, which carrier is now in position above the pins 40,

imparting movement to said carrier and the forming pin 36 transverse to the movement of the die member 21 and thereby throw said forming pin out ofthe formed eyelet, when the die member 21 with the forming pin and its carrier is returned to initial position by the lever 23.

During the return movement ofthe die member 21, ejector mechanism is actuated to engage with and unseat the finished button. This ejector mechanism consists'of a finger 15 which is in the form of a lever pivoted. at 46 to the end of the base B, one end of such finger having a movement in an arc with the button seat and shaped to eonform to the curvature of the button. The opposite end of the finger has an opening 47 in which engages a nib on the end of an arm 48 fulcrumed at 49 on the side of base B, a spring 50 maintaining said arm and the finger 15 in the position indicated in F igs. 2 and 9 away from the button and out of the path of the clamping head 29. To actuate the button ejector the arm 48 has a pivoted spring influenced cam or'trip 51 to projectinto the path of the operating'lever 23, said trip having a lateral projection 51" for a purpose to be hereinafter described. As the lever 23 is operated to advance the slidable die member 21 it will move in the direction indicated by the arrow in full lines in Fig. 7, and as it approaches and engages with the trip 51 it will swing said trip on its pivot against the tension of the spring 52, the trip projection 51 passing into a recess 48 in the arm 18 without imparting movement to the arm. When the lever has been moved to the full extent of its movement the trip will engage beneath the lever, and as the lever is moved back-- ward it will ride over the trip the trip projecti on 51 engaging with the arm serving as a stop to prevent rotation of the trip and as the trip rides down the inclined recess 53 of the lever the latter will force the trip and thereby the arm 48 downward against the tension of the spring 50 swinging the finger 45 on its pivot and unseating the button.

As already stated the button blanks vary in thickness and while the button pins are originally of the .same length owing to the varying thickness of the button blanks the projecting portions of the pins vary in length, but in order to properly form the eyelet the pin must be of the proper length beneath the button. For this purpose the pins are originally made of a length somewhat greater than is absolutely necessary, and in order that the pins will be of the same length beneath the button we provide cutter mechanism to sever the pins at a predetermined point previous to the forming of the pin into the shank or eyelet. This cutter mechanism consists of a cutting edge 54 formed on the end of an arm or lever 55 pivoted, as at 56, within a hollow portion 57 of the base, (Figs. 6, 10 and 11,) this cutting edge cooperating with the inner edge of the die block 19 to shear off a portion of the pin. This cutter is normally maintained in a position above the recess 20 in the fixed die member, as shown in Figs. 6 and 10, by a spring 58. The forward end of the lever 55 below the cutter is formed with a beveled or curved edge 59, as shown in Fig. 12, to guide the pin so that the free end thereof will occupy a position adjacent one side wall of the recess 20 in the fixed die member, thereby positioning the pin to guide it around the forming pin 36 by the curved end of the slidable die member as said latter die member is moved forward as clearly shown in Fig. 13. The cutter is actuated by a nose 6O projecting downward from the movable die member engaging with the cutter lever 55 forcing the cutter lever downward as the slidable die member is moved forward sev-' ering the surplus portion of the pin and maintaining it in such position during the further advance of the die member 21 and the forming of the eyelet. As the die member 21 is returned to initial position the spring 58 will return the cutter to initial position, which return movement is limited by the nose 60, as clearly shown in Fig. 6.

The operation of our improved button shanking machine is substantially as follows: Assuming the parts to be in the positions indicated in Figs. 1 and 6, with the movable die in its normal position and the button clamping mechanism moved away from the fixed die member and button support. A button blank with a pin inserted in the opening therein is seated in the recessed portion 19 of the fixed die member with the button blank abutting against said die member and the plate 22, the pin being guided with one end to one side of the recess 19 in the fixed-die member by the end engaging with the inclined or curved portion 59 of the cutter lever 55. The button clamping mechanism is now caused to engage with the head of the pin and the button by the actuation of the eccentric 33. Movement is now imparted to the slidable die member 21 by the lever 23. During the initial movement of the die member the nose 60 will force the cutter lever downward shearing off the surplus portion of the pin. During the further advancing movement of the die member 21 the cutter lever will be maintained out of the path of said die member by the nose 60, the end of the pin engaging at one side of the forming pin 36 and is guided between said pin and the curved or convex portion of the movable die member (Fig. 13), so that the button pin 17 will be bent or formed around the forming pin 36, as clearly shown in Fig. 14:.

\Vhen the die member 21 has been fully advanced the eyelet will be formed substantially as shown in Fig. 5. The button clamping means is now released by the eccentric 33 and during this movement of the clamping plate 30 the rods 12 will move therewith, the cam faces 44 on said rods lifting the pins 40 and the forming pin 36 through its carrier 37 out of the formed eyelet when the slidable die member is re turned to initial position by the hand lever 23, the hand lever during this movement tripping the arm A8 and ejector finger 41-6 through the trip or by-pass 51 and thereby ejecting the finished button which may be dropped into a receptacle provided for that purpose.

Having thus described our invention, we claim:

1. In a button-shank forming machine, the combination of a forming die comprising a pair of complemental members, one member of which is fixed and acts as a support for a button blank with a pin inserted in an Opening therein, and the other die member supported to have sliding reciprocatory movement relative 'to the first die member and bendthe pin into an eyelet, and said latter die member having a pin aboutwhich the eyelet is formed 2. In a button shanking machine, the combination of a fixed die member consisting of a block having a rectangular recess with the sidewalls taperinginward at one end, said die member also constitutingva support for a button blank having a headed pin inserted in an opening therein; a manuallyaoperable clamping member to engage with the pin head and button blank to maintain them in position relative to said die member; a complemental die member supported to have sliding reciproeatory movement and having a portion to engage in the rectangular recess of the other die member, the end of said portion having a concave recess; a pin carried by said latter die member in advance of the concave recessed endand about which the button pin is bent to form the eyelet, said pin having movement transverse to the movement of the die member; means actuated by the button clamp when it is'released to impart movement to said latter pin to throw it out of engagement of the formed eyelet; and a lever to impart movement to the slidable die member and pin.

3. In a button shanking machine, t 1e combination of a fixed die member consisting of a block having a rectangular recess with the side walls tapering inward at one end, said die member also constituting a support for a button blank having a headed pin inserted in an opening therein; a manually operable clamping member to engage with the 'pin' head and button blank to maintainthemin positlon relatlve to said die member; a complemental die member supported to, have sliding reciprocatory movement and having a portion to engage in the rectangular recess of theother die member, the end of said portion having a concave recess; a pin carried by said latter die member in advance of the concave recessed end about which the button pin is bent to form the eyelet, said pin having movement transverse to the movement of the die member; a spring to maintain the latter pin in position to engage in the bottom of the rectangular recess of the one die member; means actuated by the button clamp when it is released to impart movement to the pin to throw it out of engagement of the formed eyelet; and a lever to impart movement to the slidable die member and pin. 4:. In a button shanking machine, the com bination of die mechanism comprising a fixed die member, said die member also serving as a support for a button blank and pin inserted in an opening therein, and a complemental die member supported to have die mechanlsm.

sliding reciprocatory movement relative to the fixed die member to form the pin into an eyelet; and clamping means to maintain the pin and button blank in vpositionrelative to the die mechanism, comprising a plate extending transversely of and adapted to have movement toward and away from the die mechanism; a head carried by said plate to engage with the pin and button blank, said head being adjustable toward and away from the plate, a pair 01": curved fingers connected to the plate and an eccentric'between said plate and fingers operable to move the plate toward and away from the 5. In a button shanking mach-ine,qthe combination ofdie mechanism consisting of afixed die member, said die member-also constituting a supportfor a button blank and pin inserted in anopening therein, and a complemental pin bending die member supported to have"; sliding reciprocatory movement relative to the fixed die member; a forming jpin located in advance of and having movement transverse to the movement of the sliding die Jmemberand about which th pin is bent to form an eyelet; a carrier for said pin connected to the sliding die member; .a spring cooperating with said carrier to maintain the forming pin normally in operative relation with the die members; a lever to impart movement to the slidable die member and forming pin; a plate extending transversely of and movable toward and away from the die mechanism having 'means'to engage with the but ton blank and pin to clamp them in operative relation to the die mechanism; an eccentric to move the clamping plate toward and away from the die mechanism; and means connected tosaid plate to throw the forming pin out of the formed eyelet when the clamping plate is released.

6. In a button shanking machine, the combination of die mechanism consisting of a fixed die member, said die member also constituting a support for a button blank and pin inserted in an opening therein, and aeomplemental pin bending die member supported to have sliding reciprocatory movement relative to the fixed die member; a forming pin located in advance of and havmg movement transverse to the movement of the sliding die member and about which the pin is bent to form an eyelet; a carrier for said pin connected to the sliding die member; a spring cooperating with said carrier to'maintain the forming pin normally in operative relation with the die members; a lever to impart movement to the slidable die member and forming pin; a plate extending transversely of and movable toward and away from the die'mechanism having means to engage with the button blank and pin to clamp them in operative relation to the die mechanism; an eccentric k fixed die member as a cuttmg member and to move the clamping plate toward and away from the die mechanism; and means connected to said plate to throw the forming pin out of the formed eyelet when the clamping .plate is released; comprising a pair of pins adapted to have movement transversely to the movement of the slidable die member, and a pair of cams connected to and movable with the clamping plate to impart movement to the pins when the clamping plate is released, said pins cooperating with the carrier for the forming pin to impart movement to the latter and throw it out of the formed eyelet.

7. In a button shanking machine, the combination of die mechanism consisting of a fixed die member, said die member also constituting a support for a button blank and pin inserted in an opening therein, and a complemental pin bending die member supported to have sliding reciprocatory movement relative to the fixed die member; a forming pin located in advance of and having movement transverse to the movement of the sliding die member and about which the pin is bent to form an eyelet; a carrier for said pin connected to the sliding die member; a spring cooperating with said carrier to maintain the forming pin normally in operative relation with the die members; a lever to impart movement to the slidable die member and forming pin; a plate extending transversely of and movable toward and away from the die mechanism having means to engage with the button blank and pin to clamp them in operative relation to the die mechanism; an eccentric to move the clamping plate toward and away from the die mechanism; and means connected to said plate to throw the forming pin out of the formed eyelet when the clamping plate is released, comprising a pair of pins located in the path of the forming pin carrier and adapted to have movement transversely to the movement of said carrier, a spring for each of said pins to normally maintain them in position out of the path of the forming pin carrier; a pair of rods connected to the clamping plate, and cam faces on said rods to engage with and impart movement to the pins when the clamping plate is released, and said pins imparting movement to the forming pin carrier and forming pin to throw the latter out of the formed eyelet.

8. In a button shanking machine, the combination of die mechanism consisting of a fixed die member, said die member also serving as a support for a button blank with a pin inserted in an opening therein, and a complemental die member supported to have sliding reciprocatory movement relative to the fixed die member; a lever to impart movement to the reciprocatory die member; and a cutter cooperating withthe actuated by the movable die member to sever thepin at a predetermined point.

9. In a button shanking machine, the com,- binationof die mechanism consisting of a fixed die member, said. die member also serving as a support for a button blank with a pin inserted complemental diemember supported to have sliding reciprocatory movement relative to in an opening therein, and a j the fixed die member; a lever to impart I movement to the reciprocatory die member; and a cutter havmg movement transverse to and actuated by the reclprocat-ory die member and cooperating with the fixed die member to sever the pin at a predetermined point just previous to the forming otthe pin into. an eyelet. i

10. In a button shanking machine, the combination of die mechanism consisting of a fixed die member, said die member also. serving as a support for a button blank with a pin inserted in an opening therein, and a complemental die member supported to have sliding reciprocatory movement relative to the fixed die member; a lever to impart movement to the reciprocatory die member; and a cutter having movementtransverse to and actuated by the reciprocatorydiefmember and cooperating with the fixed die member to sever the pin at a predetermined point, comprising a pivoted lever below the reciprocatory diemember having a cutting edge at one end adjacent the inner edge of the fixed die member;

11. In a button shanking machine, the combination of a fixed die vmember consisting of a block having a rectangular recess the side walls of which recess taper inward at the outer end, said die. member also serving as a support for a button blank with a pin inserted in an opening therein; a complemental pin bending die member supported to have sliding reciprocatory movement relative to the fixed die member; a lever to impart movement to said reciprocatory die member; a pivoted lever having a cutting edge at one end to cooperate with the inner end of the fixed die member to sever the pin at a predetermined point; a spring to normally maintain the said lever in position to permit the pin to project between said cutter and the end of the fixed die member; said I sliding reciprocatory movement relative toi said fixed d1e member; a lever to lmpart movement to said reciprocatory die member;

means to clamp the button blankwith a pin insertedin an opening therein in operative relation to the die mechanism; an ejector finger pivotally supported to have movement 7 transversely of and adjacent the button supporting die member and normally maintained out of the path of the button clamping means; and means connected to said finengaged nd operable by the lever'when the reciprocatory die member is returned to initial position to eject the button.

13. In a button shanking machine, the

' combination of a fixed die member; a complemental die member supported to have sliding reciprocatory movement relative to said fixed die member; a lever to impart movement to said reciprocatory die member; means to clamp the buttonblank with a pin inserted in an opening therein in operative copies of this patent may be obtained i relation to the die mechanism; and means operable by the'lever When the reciprocatory die member isreturne'd to initial position to e ect the'button, comprising an e e'ctor'finger pivoted to have movement transversely to and adjacent the'button supporting die memher, and a trip connected to said ejector fin-- .ger. With Wh1ch the lever engages.

means to clamp the button blank with a pin f inserted in an opemng thereln 1n operative relation to theidie mechanism; and means operable'by the lever when the reciprocatory die member is returned to initial position to eject the button, comprising an ejector finger pivoted to have movement transversely to and adjacent thebutton supporting die member, an arm connected to said finger fulcrum-ed to svvlng on an axle transverse to the axis of the finger, and a trip connected to said arm with which the lever engages.

15. In a button shanking machine, the

combination of a fixed diemember; a complemental die member supported to have sliding reciprocatory movement relative to said fixed die member; a lever to impart movement to said reciprocatory die member;

means to clamp the button blank With a pin inserted in an opening therein inoperative relation to the die mechanism; and means operable by the lever When the reciprocatory die member is returned to initial position to eject the button, comprising an ejectorfinger pivotally supported to have movement transversely to the button supporting die menr ber, an arm connected to said finger fuls crumed-to swing on an axis transverse to the axis of the finger and having a recess, and

a trip pivotally connected to said arm in the path of the lever having a lateral projection, said lever as movement is imparted thereto to form the button shank riding over and r0- tating the trip and the trip projection engaging in the arm recess, and when the lever is returned to initial position riding over the trip the trip projection engaging With the arm preventing rotary movement of the trip and thereby imparting movement to the arm and ejector finger.

MAX STOCKOV,

v v SOLOMON STOOKOV.

I lVitnesses:

PAUL PH'ILIPP,

LAURA E. SMITH.

or five cents each, by addressing the Commissioner of Patents,

WashingtomD. C. 

